As a kickboxer, Simon Penn's (Marc Sandler) brutal win-at-any-cost tactics fed his bloodlust and need to be number-one. Now middle-aged, he's desperate to redeem his tortured soul and win back his true love, Jenny (Linda Amendola), the wife he abandoned for his dream of becoming a fighting hero. Along the way, he's teaching the lessons of his baptism by fire in the school he's built with CJ Keyes (Sarah Rachel Isenberg), a fiery female kickboxer. Kindred spirits, she convinces Penn to help her go professional in the full-contact fighting arena. But doing so brings on a brutal twist of fate and an old score unsettled.